45=4(5-8n)+7(-7-6n)

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Solution for 45=4(5-8n)+7(-7-6n) equation:


Simplifying
45 = 4(5 + -8n) + 7(-7 + -6n)
45 = (5 * 4 + -8n * 4) + 7(-7 + -6n)
45 = (20 + -32n) + 7(-7 + -6n)
45 = 20 + -32n + (-7 * 7 + -6n * 7)
45 = 20 + -32n + (-49 + -42n)

Reorder the terms:
45 = 20 + -49 + -32n + -42n

Combine like terms: 20 + -49 = -29
45 = -29 + -32n + -42n

Combine like terms: -32n + -42n = -74n
45 = -29 + -74n

Solving
45 = -29 + -74n

Solving for variable 'n'.

Move all terms containing n to the left, all other terms to the right.

Add '74n' to each side of the equation.
45 + 74n = -29 + -74n + 74n

Combine like terms: -74n + 74n = 0
45 + 74n = -29 + 0
45 + 74n = -29

Add '-45' to each side of the equation.
45 + -45 + 74n = -29 + -45

Combine like terms: 45 + -45 = 0
0 + 74n = -29 + -45
74n = -29 + -45

Combine like terms: -29 + -45 = -74
74n = -74

Divide each side by '74'.
n = -1

Simplifying
n = -1

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